Electric resistance heating devices – Heating devices – Continuous flow type fluid heater
Reexamination Certificate
2007-01-02
2007-01-02
Campbell, Thor S. (Department: 3742)
Electric resistance heating devices
Heating devices
Continuous flow type fluid heater
C219S207000
Reexamination Certificate
active
10311515
ABSTRACT:
An electric heating device especially for fluids, such as liquid fuel, includes a heat element with an electrical resistance. The heat element can be connected to an electrical power source and also includes a carrier element to which en electrically conductive heat layer of a PTC material with positive temperature resistance co-efficient is applied. The heat layer can, at least in two interspaced positions, be connected to the electrical power source.
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Campbell Thor S.
Harness & Dickey & Pierce P.L.C.
Watlow Electric Manufacturing Company
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